Being from China is an incredible soft factor, so you're probably already on a good track for success. Just keep studying for the LSAT and trying to get your score up. Kaplan's LSAT 180 book helped me to move from the high 160s to the 170s.

Just be nice and gracious when you call! You won't be the first worried applicant to call the admissions office, and they will probably check to see if there's a problem with your application or if you're just a regular old 'pending.'